Hydrocarbon-oil-gas burner.



W. H. BRUMLEY.

HYDBOOARBON OIL GAS BURNER. APPLICATION FILED APR.15 1913.

&- ar, Ln 7 6, /W-fij4 7% X l IIIIII'IIII.

run,

17* 4, /c 9 n A 1" J. 1/9

WITNESSES INVENTOR Wm. Hampfon Br-um/ey w fi BY ATTORNEY COLUMBIA PLANOGRAI'IH CO-WASHINGTON, u. c.

TTED STATES PATENT OFFICE,

'WILLIAIVJI H. BRUMLEY, OF PORTLAND, OREGON, ASSIGNOR TD .AIItf) MANUFACTURING 00., 0F PORTLAND, OREGON, A CORPORATION OF OREGON.

I-IYDROCARBON-OIL-GAS BURNER.

To all whom it may concern:

Be it known that 1, Fireman I-I. BRUMLEY, a citizen of the United States, and a resident of the city of Portland, county of Multnomah, State of Oregon, have invented a new and useful Improvement in Hydrocarbon-Uil-Gas Burners, of which the follow- .ing is a specification.

My invention relates to oil burners-and has for its main objects the providing of a burner in which the intensity of the flame may be positively controlled, which will promote more perfect combustion, and which will avoid any wasteful feed of the oil.

A further object of my invention is to provide a burner in which the flames are com stantly directed away from the body of the burner, instead of the latter being continually enveloped in the flames, as is commonly the case among other tyes of burners.

I attain such objects by causing the proper intermixing of air with vaporized oil. I, furthermore, use an improved retort designed to allow for the expansion of the heated vapor and thereby effectually overcoming the fitful or irregular feed of the oil vapors, an objectionable feature common to nearly all oil burners. I further arrange the parts so as to prevent the retort from being intensely heated, and thereby avoid the formation of carbon compounds on the interior of said retort, an objectionable feature also common to all types of oil burners.

The details of my improvements are hereinafter fully set forth.

In the accompanying drawings: Figure 1 is a side elevation of my oil burner; the pan located beneath the body of said burner is shown in section so as to illustrate the manner in which the pan and body are held together; Fig. 2 is a vertical longitudinal section of my burner, taken approximately on the line indicated by 22 iii Fig. 3; Fig. 3 is a transverse vertical section taken approximately on the line 3-3 of Fig. 1; and

Fig. 4. is a horizontal sectional view of the retort taken approximately on the line 4 4- of Fig. 1.

The body, a, comprising the mixing chamber of my burner, is tubular in form, the sides and front end of said body being eonvexed outwardly. Burner slots, 5, cut into said convened portions provide an outlet for the gases intermixed in said chamber. By cutting these slots divergent, the sheets of Specification of Letters Patent.

Application filed April 15, 1913.

Patented May 19, 191 .1.

Serial No. 761,389.

gases issuing through said slots will be converged, and thereby a better flame body is formed. The rear end of this body is tapped to acconnnodate the seating of a nipple c. The inner periphery of this nipple is threaded and an outer pipe, (Z, extending to the forward part of the body, a, is screwed in such threaded portion. The nipple, c, is countertapped and an inner pipe, 0, screwed therein,

extends inside the pipe, (Z, about threequarters the length of the latter. A seg mental air inlet slot, f, (see Figs. 2 and 3) provided in the nipple, 0, opens into the lower portion of the annular space between the two pipes cl and e. Rigidly attached to the base of the body, a, by the screws, 9, is a pan it.

The retort, z, is provided with a lug j, bearing on the upper side of the body a, and a lateral web 70, which bears on the slightly protruding end of the nipple c, and is bolted to the rear end of the body, a, by the bolts See Figs. 1, 2 and 3. These two bearing points support said retort rigidly with respect to the body a. Furthermore, the rear end of the retort, z, is provided with the laterally extending ears m, by means of which the retort is bolted to the face-plate n. Said face plate corresponds to the door of an ordinary stove inside of which my burner has been installed. The foremost portion of the retort, i, is provided with a projecting boss 0, into which is tapped a branch pipe 7).

The feed pipe r, bearing in the face plate it, extends longitudinally the length of the body a, its forward end being closed with a cap r. A T-section 8 forms a convenient connection between said feed pipe 1* and the branch pipe 2). The feed pipe 7* connects directly with the storage tank (not shown) by the conduit .25, the flow through said conduit being controlled by a manually operated needle valve M.

In the rear end of the retort, z, is a ver tic-ally projecting boss '0 (see Figs. 1 and 2) into which is tapped a pipe 20. Said pipe to projects upward above the bottom of said retort, in the manner of a stand pipe.

Threaded into the lower end of the pipe to is a globe-valve The port y of this valve is axially coincident with the pipe 6, and is so located that a fluid under suflicient pressure will be discharged through the port l directly into the open pipe e. However, if

other heat insulating material, and is provided at its upper end with a flange 6, to prevent the operators hand from coming in contact with the heated metal needle bar 7.

The method of operating this burner is as follows: The valve, 1/, is opened, thereby allowing the oil under pressure to flow into the feed pipe 1". After said feed pipe has been completely filled, the oil will rise in the branch pipe 7) into the retort 2'. 'When the level of the stand pipe, to, has been reached, the oil will overflow into the valve :0, which, having been previously opened, will allow the oil to flow through the port y into the pan h. After a small amount of oil has been discharged into the pan h, the oil valve, u, is closed andsaid oil ignited. The resultant flame will burn up around the feed pipe 1 and the retort 2', thereby heating the oil contained therein and causing the same to be vaporized. The resultant expansion will ex ert a pressure on the flow through the port y, thereby causing said flow of vaporized oil to be directed into the pipe 6, instead of allowing same to flow into the pan h. The forced feed of vapor through the pipe 6, thence through the pipe (Z will create a suction through the segmental slot f, thereby drawing a certain amount of air into the mixing chamber of the body a. The resultant gas escaping through the slots 6 will be ignited, thereby further heating the retort '5, and continuing to vaporize the oil contained in said retort. After this oil has been completely vaporized, the flames through the slots 6 will tend to die down, upon which action the operation will again open the oilvalve u. The retort, 2', will then have been heated sufiiciently to vaporize the oil discharged into it, and said vapor being constantly under pressure will supply a forced feed through the valve 00 into the pipe 6.

By having the feed pipe extend to the length shown in Fig. 1, I provide a means for facilitating the starting of a fire, for the oil in this length of pipe being heated, will tend to vaporize and the consequent expansion will place an increased pressure on that oil delivered to the retort i.

In order to overcome the objectionable feature of the oil breathing in the retort, I have made the cross-sectional area of the latter vary directly as the expansion of the vapor. This breathing is a fitful fiow of the oil instead of a steady one, and I have found that by varying the shape of my retort, as previously described, the objection will be entirely overcome, and the feed will be continuous and uniform.

Another advantage in having the pipe, w,

extend upwardly in. the retort is the fact that the most completely gasifled vapor will be delivered to the mixing chamber. By locating the air slot, j as previously described, he air will be drawn into the mixing chamber in the form of a lower stratum. This air, being heavier than the gasified vapor, will tend to remain in the lower portion of said chamber, and will not mix readily with said only sufficient oxygen being taken up by the gas to form a more perfect combustion. The flames of burning gas issuing from the slots, 6, depend directly upon the amount of gas fed through the port 1 of the valve 0;, and therefore the amount of air can be regulated by the operation of the valve handle 5. The back pressure in th retort, 2', when the valve :0 is partially or wholly closed, retards the flow of oil through the oil valve a. In this way, the flow of oil is automatically controlled by the valve :0, thereby making the control independent of the oil valve u.

I have found that the pipes, (Z, c, and the body, a, should be of an approximate relative proportion in order to obtain the best results. The length of said pipes effectually smothers any back-fire which might accidentally develop inside of the body a,

It is to be noted also that the flames do not envelop the body, as is the case in all other burners within my knowledge. This feature insures protection against the burning up of the body, which objection is commonly found in the burners referred to.

I claim:

1. In a hydro-carbon burner, a retort, an oil-feed conduit from a head of oil into the retort; an elongated mixing chamber having a tube extending longitudinally therein, such tube being open at its inner end, a second tube within the first mentioned tube, such inner tube being of smaller diameter and lesser length than the first mentioned tube, the inner tube being open at both ends and constituting the inlet to the mixing chamber, a supplemental air inlet between the two tubes; and a conduit from the retort, such conduit having a valvecontrolled out-let. located opposite to and adapted for discharging the vaporized oil into said inner tube of the mixing chamber.

2. In a hydro-carbon burner, a retort, an oil-feed conduit from a head of oil into the retort, an elongated mixing chamber having a tube extending longitudinally therein, such tube being open at its inner end, a second tube within the first mentioned tube, such inner tube being of smaller diameter and lesser length than the first mentioned tube, the inner tube being open at both ends and constituting the inlet to the mixin chain her, a supplemental air inlet between the two tubes; and a conduit entering the outlet end of the retort and projecting above the bottom of the latter, such conduit having a valve-controlled outlet located opposite to and adapted for discharging the vaporized oil into said inner tube of the 1nixing chamber.

3. In a hydro-carbon burner, a retort having an interior of increasing lateral. cross section from its inlet to its outlet; an elongated mixing chamber having a tube extending longitudinally therein, such tube being open at its inner end, a second tube within the first mentioned tube, such inner tube being of smaller diameter and lesser length than the first mentioned tube, the inner tube being open at both ends and constituting the inlet to the mixing chamber, a supplemental air inlet between the two tubes; and a conduit from the retort, such conduit having a valve-controlled outlet lo cated opposite to and adapted for discharging the vaporized oil into said inner tube of the mixing chamber.

4. In a hydro-carbon burner, a retort having an interior of increasing lateral cross section from its inlet to its outlet; an elongated mixing chamber having a tube extending longitudinally therein, such tube being open at its inner end, a second tube within the first mentioned tube, such inner tube being of smaller diameter and lesser length than the first mentioned tube, the inner tube being open at both ends and constituting the inlet to the mixing chamber, a supplemental air inlet between the two tubes; the retort being located over the mixing chamher and the latter having gas outlets at the top extending under the retort; and a conduit from the retort, such conduit having a valve-controlled. outlet located opposite to and adapted for discharging the vaporized oil into said inner tube 01 the mixing cha1nher.

5. In a hydro-carbon burner, a retort having an interior of increasing lateral crosssection from its inlet to its outlet, a valve controlled oil-feed conduit from a head of oil into the retort; an elongated mixing chamber having a tube extending longitudinally therein, such tube being open at inner end, a second tube within the first r mentioned tube, such inner tube being of smaller diameter and lesser length than the first mentioned tube, the inner tube b ing open at both ends and constituting the inlet to the mixing chamber, a supplemental air inlet between the two tubes; the retort being located over the mixing chamber and the latter having gas outlets at the top e:-: tending under the retort; and a conduit entering the outlet end of the retort and projecting above the bottom of the latter, such conduit having a valve-controlled outlet located opposite to and adapted for discharging the vaporized oil into said inner tube oi the mixing chamber.

WILLIAM H. BRUMLEY.

/Vitnesses Trios. .lllunnLErsnN, 7M. C. SoHMrrT.

depict of thin patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

